Sirens of Song (Internet radio)

I'd never tried Internet radio, but became interested when I read a recent polishlinux post about how to listen to Internet radio. The post didn't say much about how to find content, so a quick google search yielded www.live365.com. live365 has lots of stations of all kinds of music. I've been enjoying Sirens of Song (which has its own site at www.sirensofsong.com).